Priming apparatus for automobile engines



Feb. 17%, M25.

Filed Dec. 18. 192

4 4 ,13, a. Z .25 2, 2 P MEI- i 6 I w w m in I 22.... IiI v i 3 E3 5432/2??? ,Atv/v o. 2

Patented Fe. 17, 1925.

UNITED STATES 1,526,838 PATENT OFFICE.

MELVIN C. DART, 01 NEW YORK, N.

PBIMING APPARATUS FOR AUTOMOBILE ENGINES.

Application filed December 18, 1922. Serial No. 607,546.

To all whom "it may concern:

Be it known that I, MELVIN O. DART, a citizen of the United States, and a resident of the city of New York, in the count of the Bronx and State of New York, ave invented certain new and useful Improvements in a Priming Apparatus for Automobile Engines, of which the following is a SEBClfiCELtlOH.

mong the principal objects which the present inventlon has in View are: supply an internal combustion engine preliminary to the starting thereof of a high volatile explosive fuel; to provide means for delivering a measured quantity of said high explosive fuel; to provide means for preventing accidental ignition of the explosive fuel at the source thereof; and to simplify the construction and arrangement of the apparatus for the purpose of cheapening the same and facilitating the operation thereof.

Drawings.

Figure 1 is a side view of a fragment of an automobile body and engine therefor showing in conjunction therewith an apparatus of the character mentioned, constructed and arranged in accordance with the present invention.

Figure 2 is a vertical section of the high explosive tank and equipments therefor for delivering measured quantities of the hi h explosive fuel.

igure 3 is across section on enlarged scale, the section being taken as on the line 33 in Fig. 2.

Figure 4 is a cross section on enlarged scale taken as on the line 44 in Fig. 2. Figure 5 is a cross section of the valve stem and the housing therefor, shown in conjunction with a fragment of the top or cover of the reservoir for holding high ex plosive fuel.

Description.

With the above stated objects in view, a small reservoir or tank 10 is secured in service by means of supporting straps 11 to the dash 12 of an automobile body. The tank 10 is supplied with ether 13 or, other highly volatile explosive substance.

To introduce the ether into the tank 10 a screw plug 14 is removed, leaving exposed thereunder a screen 15 for arresting any impurities which might be present in I the ether. When the plug 14 is in position,

thetank 10 is hermetically sealed.

To deliver ether 13 from the tank 10, the valve 16 is lifted from its seat which is preferably formed in a screw lug 17 which is provided with a series 0 perforations 18. The valve 16' is provided with a stem 12 which at the upper end thereof is furnished with an elongated groove 20. The upper end of the groove 20 as can be best seen in Fig. 2 of the drawings is held withi-n a gland nut 21 which is used to pack the joint through which the stem 19 passes to the outside of the said tank. A screwthreaded nipple 22 with a soft parking 23 constitutes, in the usual manner, the gland packing referred to.

To lift the stem 19 and the valve 16 connected therewith a bell crank lever 24 is provided with a pivot 25 having hearings in a standard bracket 26 raised above the top cover of the tank 10. A connecting rod 27 having at its inner extremity a finger hold or knob 28 as can be seen best in Fig. 1 of the drawings, serves to rock the lever 24 thereby lifting the extension thereof having at the end aslot 29. p

The slot 29 holds a pin 30 which is made fast to the two sides of a bifurcated end of the stem 19.

It is obvious when viewing the construction shown in Fig. 2 that if the rod 17 be drawn in the direction indicated by the arrow shown adjacent thereto, the slotted end of the lever 24 is lifted with the result that the spiral spring 31 is compressed between the top of the tank 10 and a collar 32 on the stem 19. It is also obvious that when the tension or pulling strain isremoved from the rod 27, the spring 3 press ing down upon the collar 32 forces the valve 16 upon its seat at the upper end of the lug 17.

W en the stem 19 is lifted to raise the valve 16 the upper end of the groove 20 extends beyond the nut 21, the groove 20 thereafter forming a passage for the introduction of air to the interior of the tank 10, thereby promoting the flow of the ether 13 from the said tank 10. lVhen the valve 16 is lifted, the valve 33 at the lower end of the stem 34 is lifted above the screw plug 35. It will be noted that the valve 33 is cupped above the screw plug 35.

It will also be noted that as the valve 33 is cupped above the end of the plug 35 any sudden back pressure produced in the pipe 37 would primarily effect the valve 33 to lift the same until the inclined surface 38 thereof rests upon the seat 39, the last named action resulting from unpremeditated ressures in the pipe 37 which is permitted, by reason of the fact that the stem 19 and the lower extension thereof is con'nected with the stem 34 by means of a pin 40 which extends through the slot 41 in a tubular extension 42 forming a portion of the stem 34.

Having an apparatus such as described installed on the dash 12 of an automobile, the operation of priming the engine such as shown in Fig. 1, 18 as follows:

The driver asping the handle 28 draws the same to him, thereby rocking the lever 24 with the result that the stem 19 and valves 16 and 33 are lifted. Lifting the valve 16 opens the passageway through the perforations 18 to the measuring chamber 36, while lifting the valve 33 places the cone surface 38 thereof upon the seat 39, thus closing the lower end of the measuring chamber 36. At the same time it will be noted that the upper end of the groove 20 has passed above the nut 21 to permit air to enter the tank 10.

The driver holds the button 28 back until the chamber 36 is completely filled. By then releasing the button 28 the spring 20 is permitted to seat the valve 16 to close the lower end of the tank 10 and to hood the upper end of the groove 20. At the same time the valve 33 is removed from its seat 39 and the ether is permitted to flow through the pipe 37 to the manifold 43-of the engine or to the upper end of the carburetor as the case may be. High volatile ether 13 thus being delivered to the manifold the suction of the engine carries the same into the cylinders thereof, where being highly explosive 'it is ignited to start the engine.

It will be understood that the quantity contained in the chamber 36 is sufficient to feed the engine for a time necessary to start the flow of the usual gasoline from the carburetor supplying the same to the engine. After the priming referred to and when the engine is taking its usual supply of gasoline, the apparatus herein described remains inactive.

Olaf/ms.

1. A priming apparatus comprising an airtight container; a measuring compartment in open communication with said container; a spring-seated valve for closing the communication between said container and said compartment; a second valve operatively connected with the first mentioned ,valve for determining the flow from said compartment, said second mentioned valve operating simultaneously with said first mentioned valve to close the delivery opening of said compartment when the first mentioned valve is moved to open communication between said container and said compartment.

2. A priming apparatus comprising a reservoir container for highly volatile li uid; a measuring chamber disposed in receiving relation to said container; a valve normally closing the communicatlon between said chamber and said container; means operatively connecting the delivery end of said chamber and the fuel feeding mechanism of an internal combustion engine; a valve for closing the delivery end of said chamber when the receiving end thereof is open to said container; and means for closing the delivery end of said chamber by pressure in the delivery pipe connecting said chamber and said mechanism.

3. A priming apparatus comprising a rechamber and the fuel feeding mechanism of an internal combustion engine; a valve for closing the delivery end of said chamber when the receiving end thereof is open to said container; and means for closing the delivery end of said chamber by pressure in the delivery pipe connecting said chamber and said mechanism, said means embodying a sliding connection between said first mentioned and said second mentioned valves whereby the second mentioned valve is permitted to close without reference to the operation of the first mentioned valve.

4. A priming apparatus comprising a re servoir containerfor highly volatile liquid; a measuring chamber disposed in receiving relation to said container; a valve normally closing the communication between said chamber and said container; means operatively connecting the delivery end of said chamber and the fuel feeding mechanism of an internal combustion engine; a valve for closing the delivery end of said chamber when the receiving end thereof'is open to said container; and means for closing the delivery end of said chamber by pressure in the delivery pipe connecting said chamber and said mechanism, said means embodying a sliding connection between said first mentioned and said second mentioned valves whereby the second mentioned valve is permitted to close without reference to the operation of the first mentioned valve, said second mentioned valve being cupped in its under surface to pocket -.;-moving gas and atmosphere when moving toward said chamber.

LfiELVIN C. DART. 

